How to use NgRx ComponentStore? - Alex Okrushko NG-DE 2022

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Four types of stores:

  • Singleton state
    • Component store injected in root.
    • Kind of like global state.
    • Keep store laser-focused on small parts, otherwise it gets too big really fast and difficult to maintain.
  • Common component state
    • Used by presentational component (communicates only through input and output).
    • Provided within the component to keep track of internal state.
  • Local component state
    • Contains business logic so that it is not there in the component.
    • Component = function over data that produces template; should not contain business logic.
    • Will have other services injected in it.
  • Component branch state
    • Provided in a particular component.
    • Used for all childc omponents in the tree.